Question

once the body has begun shivering, what happens to make it stop shivering?

• when body temperature returns to normal, the respiratory system sends a message to the skeletal system to stop shivering.
• when body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.
• when body temperature is below normal, the nervous system sends a message to the skeletal system to stop shivering.
• when body temperature is below normal, the respiratory system sends a message to the muscular system to stop shivering.

Explanation:

Shivering is a muscular response (muscular system) to low body temperature, regulated by the nervous system. When body temp returns to normal, the nervous system signals the muscular system to stop. Other options are incorrect: respiratory system doesn't control shivering, shivering stops when temp is normal (not below), and skeletal system isn't the main system for shivering (muscular is).

Answer:

B. When body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.